{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:CLS4HOQ6FBE2AU6BGKDZ67IXWY","short_pith_number":"pith:CLS4HOQ6","schema_version":"1.0","canonical_sha256":"12e5c3ba1e2849a053c132879f7d17b62d56db348e113b280b6fb1fa651eaadb","source":{"kind":"arxiv","id":"1602.07588","version":5},"attestation_state":"computed","paper":{"title":"Evidence for a $B_s^0 \\pi^\\pm$ State","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"D0 Collaboration","submitted_at":"2016-02-24T16:44:51Z","abstract_excerpt":"We report evidence of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \\rightarrow B_s^0 \\pi^{\\pm}$, $B_s^0 \\rightarrow J/\\psi \\phi$, $J/\\psi\\rightarrow \\mu^+ \\mu^-$, $\\phi \\rightarrow K^+K^-$. This is evidence for the first instance of a hadronic state with valence quarks of four different flavors. The mass and natural width of this state are measured to be $m = 5567.8 \\pm 2.9 {\\rm \\thinspace (stat)} ^{+0.9}_{-1.9} {\\rm \\thinspace (syst)}$ MeV/$c^2$ and $\\Gamma = 21.9 \\pm 6.4 {\\rm \\thinspace (stat)} ^{+5.0}_{-2.5} {\\rm \\thinspace (syst)} $ MeV/$c^2$. If the decay is $X(5568) \\rig"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1602.07588","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-02-24T16:44:51Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"46365ce7e18da2771f92a9e0679378f4d33dd23d066dee2c255fa375c015326f","abstract_canon_sha256":"61cfce1c2c13cb89550fa3726fa4c7fc8427bf319e141503735aff5ae3fc4060"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:14.123323Z","signature_b64":"AtOysBme6qfQLSWRg4lT/riqS9Q/oMlSv/2tS4qpzM31+rEcWjxOGKSfFQDYgQXLFpaqqd4hv3BDxOns0EL6DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12e5c3ba1e2849a053c132879f7d17b62d56db348e113b280b6fb1fa651eaadb","last_reissued_at":"2026-05-18T00:55:14.122885Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:14.122885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evidence for a $B_s^0 \\pi^\\pm$ State","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"D0 Collaboration","submitted_at":"2016-02-24T16:44:51Z","abstract_excerpt":"We report evidence of a narrow structure, $X(5568)$, in the decay sequence $X(5568) \\rightarrow B_s^0 \\pi^{\\pm}$, $B_s^0 \\rightarrow J/\\psi \\phi$, $J/\\psi\\rightarrow \\mu^+ \\mu^-$, $\\phi \\rightarrow K^+K^-$. This is evidence for the first instance of a hadronic state with valence quarks of four different flavors. The mass and natural width of this state are measured to be $m = 5567.8 \\pm 2.9 {\\rm \\thinspace (stat)} ^{+0.9}_{-1.9} {\\rm \\thinspace (syst)}$ MeV/$c^2$ and $\\Gamma = 21.9 \\pm 6.4 {\\rm \\thinspace (stat)} ^{+5.0}_{-2.5} {\\rm \\thinspace (syst)} $ MeV/$c^2$. If the decay is $X(5568) \\rig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.07588","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1602.07588","created_at":"2026-05-18T00:55:14.122956+00:00"},{"alias_kind":"arxiv_version","alias_value":"1602.07588v5","created_at":"2026-05-18T00:55:14.122956+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.07588","created_at":"2026-05-18T00:55:14.122956+00:00"},{"alias_kind":"pith_short_12","alias_value":"CLS4HOQ6FBE2","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_16","alias_value":"CLS4HOQ6FBE2AU6B","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_8","alias_value":"CLS4HOQ6","created_at":"2026-05-18T12:30:09.641336+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2605.05799","citing_title":"$T^a_{c\\bar{s}0}(2900)$, $T_{cs0}^*(2870)^0$, and other singly-heavy tetraquark states","ref_index":8,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY","json":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY.json","graph_json":"https://pith.science/api/pith-number/CLS4HOQ6FBE2AU6BGKDZ67IXWY/graph.json","events_json":"https://pith.science/api/pith-number/CLS4HOQ6FBE2AU6BGKDZ67IXWY/events.json","paper":"https://pith.science/paper/CLS4HOQ6"},"agent_actions":{"view_html":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY","download_json":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY.json","view_paper":"https://pith.science/paper/CLS4HOQ6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1602.07588&json=true","fetch_graph":"https://pith.science/api/pith-number/CLS4HOQ6FBE2AU6BGKDZ67IXWY/graph.json","fetch_events":"https://pith.science/api/pith-number/CLS4HOQ6FBE2AU6BGKDZ67IXWY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY/action/storage_attestation","attest_author":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY/action/author_attestation","sign_citation":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY/action/citation_signature","submit_replication":"https://pith.science/pith/CLS4HOQ6FBE2AU6BGKDZ67IXWY/action/replication_record"}},"created_at":"2026-05-18T00:55:14.122956+00:00","updated_at":"2026-05-18T00:55:14.122956+00:00"}